2005
DOI: 10.1590/s1516-89132005000300004
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Nuclear halo from Bradysia hygida (Diptera:Sciaridae) salivary gland polytene cells

Abstract: A protocol for recovered nuclear halos from insect polytene nuclei after the extraction of the nuclear proteins using LIS detergent is reported in this work. Analysis was carried out using fluorescence and confocal laser scan microscopy. The extraction of nuclear halos was possible only with nuclei-fraction isolation in hypotonic buffer without spermine and spermidine. The recovered nuclear halos from Bradysia hygida salivary gland polytene nuclei, contributed greatly to the study of the structure and function… Show more

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Cited by 2 publications
(1 citation statement)
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“…Studies of this DNA segment have identified a region with numerous sites of bent DNA and a significant site localized to approximately 2000 bp upstream of the BhC4-1 gene transcription start site (Fiorini et al, 2001). Sites of association with the nuclear matrix have also been identified in this segment (Mikami, 2000;Polinarski, 2005). The challenge of identifying the replication initiation site within this developmentally regulated amplification segment introduces difficulty into correlations with either the intrinsic bent DNA sites or the sites of association with the nuclear matrix in the BhC4-1 gene amplicon with replication initiation.…”
Section: Introductionmentioning
confidence: 99%
“…Studies of this DNA segment have identified a region with numerous sites of bent DNA and a significant site localized to approximately 2000 bp upstream of the BhC4-1 gene transcription start site (Fiorini et al, 2001). Sites of association with the nuclear matrix have also been identified in this segment (Mikami, 2000;Polinarski, 2005). The challenge of identifying the replication initiation site within this developmentally regulated amplification segment introduces difficulty into correlations with either the intrinsic bent DNA sites or the sites of association with the nuclear matrix in the BhC4-1 gene amplicon with replication initiation.…”
Section: Introductionmentioning
confidence: 99%